Engelsk navneord: thorium | |||
| 1. | thorium (om masse el. substans) a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands | ||
| Termer med samme betydning (synonymer) | atomic number 90, Th | ||
| Mindre specifikke termer | metal, metallic element | ||
| Mere specifikke termer | radiothorium, thorium-228 | ||
| Vedrærer disse overordnede termer | monazite, thorite | ||